FIR Designer 1 Release Notes. FIR tool for Speakers

FIR Designer 1 Release Notes

FIR Designer 1 is no longer available for purchase (learn more). It has been replaced with FIR Designer 2

Version 1.31.19 (8 April 2020)

Fix: SPK file response was shifted 2x in frequency.

Project File Format Version: 17

FIR_Designer_1_31_19.dmg FIR_Designer_1_31_19_Setup.exe

Version 1.31.18 (19 February 2020)

Fix: Minor problem when loading some impulse response TXT files.
Fix: Updated SSL Certificate for Windows.

Project File Format Version: 17

Version 1.31.17 (4 April 2019)

Fix: Some WAV files, generated by SMAART, wouldn’t load.
Fix: When resampling an impulse response during load, some sample rate combinations caused artefacts.

Project File Format Version: 17

Version 1.31.16 (20 January 2019)

Minor update to the tracking of odd-order low-pass Bessel filters. (See fix in 1.31.15.)

Project File Format Version: 17

Version 1.31.15 (17 January 2019)

Fix: A power spectrum only STO file may crash the application.
Fix: Polarity of odd-order low-pass Bessel filters was incorrect, but matched Lake products. This version calculates the correct polarity for new projects, but maintains the inverted filters when loading older projects. It also provides an option to convert a project to the correct polarity.
Various user-interface updates and fixes.

Project File Format Version: 17

Version 1.31.14 (29 July 2018)

Fix: Occasional off-by-1-sample in averaging automatic time alignment. Minor speed improvement to time alignment.
Fix: On averaging plots, trying a zoom selection area while in IR mode was causing a zoom when returning to magPhase.
Fix: Minor error in measurement response when measurement is resampled down to 12 kHz or 24 kHz.
Various user-interface updates and fixes.

Project File Format Version: 17

Version 1.31.13 (5 July 2018)

Update: Tweak to IIR text output precision.
Fix (Windows only): Some PC’s may have experienced “error creating SSL context” message when trying to activate version 1.31.12.

Project File Format Version: 17

Version 1.31.12 (30 April 2018)

Fix (Windows only): A change in the Qt Libraries in 1.31.11 caused the application to possibly not to start or accept a valid license key.

Project File Format Version: 17

Version 1.31.11 (25 April 2018)

Fix: When loading TXT and WAV files, if the delay is indicated in the filename, it wasn’t being used correctly to align the measurement.
Fix: When exporting IIR filter coefficients, coefficients may be missing if the filters were not enabled.
Various user-interface updates and fixes.

Project File Format Version: 17

Version 1.31.10 (31 March 2018)

Update: Improvement to measurement resampler.
Various user-interface updates and fixes.

Project File Format Version: 17

Version 1.31.9 (2 February 2018)

Fix: Loading a project file that contained a target response with coherence could result in the program crashing.
Fix: When loading an older project file, the file version wasn’t displaying correctly on the warning dialog.
Various user-interface updates and fixes.

Project File Format Version: 17

Version 1.31.8 (10 January 2017)

Fix. Some text files were not loading correctly.
Fix. Crash when loading some SysTune (STO) files.
Fix. SMAART trace (TRF) files with a specific FFT size wouldn’t load properly. Only MTW files were loading.
Update: Brought magnitude plot to the front on the Averaging tab lower plot.
Update: Limited averaging to 200 measurement files to avoid crash on Windows (due to 32bit application memory limit).

Project File Format Version: 17

Version 1.31.6 (24 November 2017)

UI bug fixes.
Fix. Sample rate not correctly set for imported and target measurement files when selecting “New” project.

Project File Format Version: 17

Version 1.31.5 (5 November 2017)

UI bug fixes.

Project File Format Version: 17

Version 1.31.4 (9 October 2017)

Fix: Another order UI problem on the Voicing tab.

Project File Format Version: 17

Version 1.31.3 (3 October 2017)

Fix: Filter order for Linkwitz/Riley filter prototypes, on the Voicing tab, has no effect.

Project File Format Version: 17

Version 1.31.2 (27 September 2017)

UI bug fixes.

Project File Format Version: 17

Version 1.31.1 (26 September 2017)

UI bug fixes.

Project File Format Version: 17

Version 1.31.0 (14 September 2017)

New: Step response of the filtered loudspeaker on the Export tab. See “Step R” checkbox.
New: Zooming on most plots. Select the zoom area using the mouse, then press the “Max” button to return to the extents.
UI bug fixes.

Project File Format Version: 17

Version 1.30.1 (23 August 2017)

Fix: When loading a project that has a target file on the Target Tab, but no measurement on the Import tab, the target file does not load and display. (Bug introduced in 1.29.0.)

Project File Format Version: 17

Version 1.30.0 (21 August 2017)

New: Neville Thiele notched crossover (NTnc) filters on the IIR, Mag Adjust and Mag Design tabs. These crossover filters, developed by audio pioneer Neville Thiele, are a slightly steeper alternative to Linkwitz-Riley filters. For more information, Google “Neville Thiele notched crossover filters.” In this implementation, the lobe height can be varied from -80 to -20 dB. Complementary filters should have the same frequency, order and lobe height.
Update: Additional comments added to IIR export txt files.

Project File Format Version: 17

Version 1.29.3 (20 August 2017)

Fix: Problem with Auto Mag and Auto Phase tabs that have very low frequency bands that are close together.

Project File Format Version: 16

Version 1.29.2 (14 August 2017)

More fixes to project loading bugs, introduced in 1.29.0.

Project File Format Version: 16

Version 1.29.1 (13 August 2017)

Fix: Program crash (introduced in 1.29.0) when loading a project with the number of Auto Mag bands other than 3.

Project File Format Version: 16

Version 1.29.0 (12 August 2017)

New: Plot traces can be turned on/off.
New: Plot cursor with value display. (Can be turned off in Preferences.)
New: Option for thicker plot lines.
New: Expanded preferences list.
Update: Minor low frequency plotting improvement.
Update: Major change to the project file format to improve robustness and extensibility.
Various minor user interface bug fixes.

Project File Format Version: 16

Version 1.28.1 (26 July 2017)

New: Linea Research (SFI) file export. Beta.
Fix: Import and Target tab “Delay (samples)” display and IIR tab filters don’t correctly update when the “Design sample rate” is changed.

Project File Format Version: 16

Version 1.27.2 (1 July 2017)

Fix: The “Clear” button on the Import tab wasn’t clearing the imported response.
Fix: Program might crash when loading a project file containing a “Mag Design” with Keele/Horbach 2 filter prototypes.

Project File Format Version: 16

Version 1.27.1 (30 June 2017)

Fix: The “Design sample rate” setting in “Global Preferences” was being ignored when starting a new project or opening a new window.

Project File Format Version: 16

Version 1.27.0 (28 June 2017)

New: The Imported measurement and the Target File can now be reset or cleared using the new “Clear” buttons.
New: Measurement smoothing options on the Target File on the Target tab; similar to those on the Import tab.
Fix: Bug introduced in version 1.26.5. Corrupted imported measurement when using Power Smoothing on the Import tab.
Fix: Smoothing options were not copied to the Target File on the Target tab, when using “Copy to Target” on the Import tab.

Project File Format Version: 16

Version 1.26.5 (25 June 2017)

Update: Slight speed improvement to plots.
Fix: Slight error spikes on “Total Error” plots where the FIR filter’s phase wraps beyond +-180 degrees.
Fix: Intermittent crash when loading a project file with Chebyshev and/or Elliptic filters on IIR and/or Mag Design tabs.
Fix: Saved project file has incorrect information for Chebyshev and Elliptic filters for Mag Design tab.

Project File Format Version: 15

Version 1.26.4 (13 June 2017)

Fix: Another intermittent crash when using Elliptic filter prototypes. (Thanks for your patience!)

Project File Format Version: 15

Version 1.26.3 (13 June 2017)

Fix: Intermittent crash when using Elliptic filter prototypes.

Project File Format Version: 15

Version 1.26.2 (12 June 2017)

Update: EV/Dynacord GKF file import now supported.

Project File Format Version: 15

Version 1.26.1 (12 June 2017)

New: Chebyshev (type 1 and 2) and Elliptic high-pass and low-pass filters.
Update: Some table views are wider to assist with filter prototype editing.
Fix: Choosing a linear-phase brick-wall filter wasn’t setting the phase type to “Linear” on some tabs.
Fix: On the “Magnitude Design” tab, the “Complement” checkbox was not being cleared when selecting a phase type other than “Linear.”

Project File Format Version: 15

Version 1.25.0 (3 June 2017)

New: Export support for EV/Dynacord GKF files; for now only 513 taps at 48 kHz (for import into IRIS).
Update: With filter width set to “Q” and when adjusting gain, filter prototypes now have constant Q. Also, Q and BW limits are now independent.
Fix: Changing the bandwidth/Q setting, in the Preferences dialog, only updated the current window and not all other open FIR Designer windows.
Update: Filter dropdown menus close when a new item is selected. This reduces the number of clicks to change a filter setting in a dropdown menu.

Project File Format Version: 14

Version 1.24.1 (22 May 2017)

New: A “power” smoothing option, for the magnitude spectrum only, when smoothing the response on the Import tab. (The phase smoothing is still complex.)
New: Linear-phase brick-wall crossover filters, on both the Magnitude Adjust and Magnitude Design tabs.
Fix. The filter Delay and Length ms, and target millisecond (ms) values were not updating when the sample rate was changed.
Fix. Crash when attempting to load some older SMAART trace (TRF) files.

Project File Format Version: 13

Version 1.23.0 (8 May 2017)

New: Filter frequency widths can now be entered as either “Q” or “BW” (bandwidth). See the Preferences menu item.
Update: Minor improvement to band smoothing frequency alignment.
Fix. The bandwidth (BW) for a 4th order phase filter could go out of range when changing from 1st or 2nd order to 4th order.
Fix: Loading a response didn’t set the * in the title bar, indicating the project had changed.

Project File Format Version: 12

Version 1.22.4 (3 May 2017)

Fix. Program crash when loading a 24 bit PCM WAV file created by Audiovero Acourate.
Fix: Program crash when saving a project when, on the “Export” tab, the last file format type is selected – “WAV file (32 bit, int)”.

Project File Format Version: 12

Version 1.22.2 (26 April 2017)

Fix. File menu “Save” option was saving the project file without the “.fdp” extension, instead of overwriting the existing project file.

Project File Format Version: 12

Version 1.22.1 (3 April 2017)

Fix. “Use Coherence” was enabled on Import tab, even when the loaded measurement didn’t have coherence data.

Project File Format Version: 12

Version 1.22.0 (22 March 2017)

New: Measurement smoothing on the “Import” tab. Especially useful for SysTune STO files where the loaded measurement doesn’t have any of SysTune’s windowing and smoothing already applied.
Update: There is now a new project “Save As…”, separate to the “Save” menu item. Keyboard “Cntrl-S” now does an unprompted fast save for projects that have previously been saved.

Project File Format Version: 12

Version 1.21.2 (14 March 2017)

Fix: Some parameters, including averaging mode, were being ignored when loading an averaging session file on the “Measurement Averaging” tab.
Update: “Normalise magnitude to max” is now unchecked, on the “Import” tab, when using “Copy Averaged IR to Import Tab.”
Update: Added a comma (“,”) to the end of all IIR a2 coefficient lines in MiniDSP text files (saved from the “IIR Filters” tab).

Project File Format Version: 11

Version 1.21.1 (12 February 2017)

Note: This Windows installer was re-uploaded to the website on 24 February. Additional DLL’s were added after a user reported activation problems.

Fix: Program crashed when loading a project file containing IIR all-pass filters. (This was fixed in 1.20.2 but accidentally omitted from the 1.21.0 release.)

Project File Format Version: 11

Version 1.21.0 (6 February 2017)

New: The minimum and maximum level (dB) of plots are now user adjustable. (See dropdown combos below plots.)
Update: “Control” shortcut keys added to Project menu.
Update: Filter table width, on “Magnitude Adjust” tab, adjusted to reduce scrolling.

Project File Format Version: 11

Version 1.20.2 (28 January 2017)

Fix: Program crashed when loading a project file containing IIR all-pass filters.

Project File Format Version: 11

Version 1.20.1 (21 January 2017)

Update: Minor improvements to robustness of EASERA ETM file loading.
New: EASERA EFR file loading.

Project File Format Version: 11

Version 1.20.0 (18 January 2017)

Update: Smoothing response plotting at low frequencies.
Update: Minor speed improvements.
Update: Response filenames now displayed on the Import and Target tabs.
Fix: Voicing tab filters were not updating when the Design sample rate was changed.
Fix: ETM file importing was giving unexpected results for ETM files that don’t have channel header data.

Project File Format Version: 11

Version 1.19.5 (12 January 2017)

Fixed bug added in 1.19.3: FIR export format dropdown selection incorrect.
Fixed: In IIR filters export text files, bandpass filters were missing coefficients a2 and b2.

Project File Format Version: 11

Version 1.19.4 (12 January 2017)

Update: Minor improvement to Auto Mag smoothing in frequency regions where the target magnitude has high slope.
Fix: Target response, when using a target file, wasn’t updating correctly on the Auto Mag and Auto Phase tabs when changing the “Design sample rate.”

Project File Format Version: 11

Version 1.19.3 (12 January 2017)

New: Added specific MiniDSP export option on the “IIR Filters” tab.
Update: Increased the precision of the FIR filter text file export. Added an alternative text file export that includes scientific notation for smaller values.
Fix: Target response wasn’t correct when selecting “File + Target” first then loading a target file.

Project File Format Version: 11

Version 1.19.2 (11 January 2017)

Fix: Program crashed when selecting Keel/Horbach filter prototypes in Direct Design mode.

Project File Format Version: 11

Version 1.19.1 (10 January 2017)

Fix: Program crashed if an Auto Mag or Auto Phase band had a start frequency >= its end frequency and the band was enabled. The program would also crash if loading a project file with the same band settings.
Fix: Minor Voicing EQ Solo bug.

Project File Format Version: 11

Version 1.19 (5 January 2017)

New: The IIR Filters tab now includes all-pass filters. The upper IIR plot now includes the combined IIR filters phase.
Update: Many speed improvements in both the calculations and plotting.
Update: Now possible to Delete the 1st row in any filter table.
Update: Minor adjustment to 1/1 octave smoothing near nyquist.
Fix: On many of the tabs, the filters were not updating correctly for Add, Delete, Move Up and Move Down operations.
Fix: DC Compensation used the wrong mode when “Complement” flag was set in magnitude filter prototypes in Direct Design.
Fix: DC Compensation in Direct Design mode with HPF’s wasn’t working correctly.
Fix: Program crash when loading an older Direct Design project file.

Project File Format Version: 11

Version 1.18.1 (1 January 2017)

Fix: DC Compensation used the wrong mode when “Complement” flag was set in magnitude filter prototypes in Direct Design.
Update: “Complement” flag no longer allowed for Linkwitz/Riley filter prototypes. No needed since L/R HPF and LPF are complements of each other.

Project File Format Version: 10

Version 1.18 (30 December 2016)

New: On the IIR Filter tab, filter coefficients can now be saved to a text file. The coefficients can be used in the Advanced biquads section in some of MiniDSP’s FIR capable plugins.
Update: DC Compensation has been updated for work when high-pass filter prototypes are in use. In this case, DC Compensation will correct any minor offset, due to truncation and windowing, and provide true DC blocking. (Previously DC Compensation only corrected the minor offset, away from 0 dB, due to truncation and windowing, for filter designs that intended 0 dB at DC.)
Fix: “Beta” label was still appearing on the Measurement Averaging tab.
Fix: Cleaned up UI controls tab order.

Project File Format Version: 10

Version 1.17.1 (21 December2016)

Fix: Incorrect delimiter in averaging file caused averaging file load to fail.
Update: Import Tab and Measurement Average tab delay line edit limits increased to half the FFT length.

Project File Format Version: 10

Version 1.17 (19 December2016)

New: Measurement Averaging is now out of Beta and officially ready.
- Load and save average session files. These files store references to all the measurement files and settings used to create an average.
- Measurements don’t need to have the same sample rate as the project, and the averaging automatically adapts when the project “Design sample rate” is changed.
New: “Complement” option now on the Magnitude Design tab for Bessel and Butterworth filter prototypes, when they are set to linear phase. This complement option is useful for creating loudspeaker crossover target responses that sum correctly to unity. Previously, only Linkwitz/Riley filters could be used as targets that sum to unity.
Fix: Magnitude spectrum plots showed less energy at high frequencies when IR peak was away from time=0 (and thus the phase showed high slope).
Fix: Extremely rare plotting glitch when changing sample rate.

Project File Format Version: 10

Version 1.16 (9 December2016)

New: Multi-window! In the Project menu, select “New Window” to open another FIR Designer window and work with multiple projects at once.
New: Associate the FDP file extension with FIR Designer and load projects by double clicking on the project file. If FIR Designer is already running, this spawns a new window.
New: Project edited/changed is now indicated by a * in the title bar. A save prompt appears at program close.

Project File Format Version: 9

Version 1.15.4 (2 December2016)

Fix: Target tab frequency/slope table not wide enough for some users on Windows 7.

Project File Format Version: 9

Version 1.15.3 (30 November 2016)

Fix: Program hung when exporting to directories containing some non-English characters.

Project File Format Version: 9

Version 1.15.2 (28 November 2016)

New: Project, import and export directories are now stored in the preferences file and retained between program runs.
New: “Update available” notification dialog if connected to the internet.
New: Program can take a FDP filename as a starting argument. (This isn’t fully tested yet but is a step towards file extension association and launching the app by double clicking a FDP file.)
Fix: Fixed problems importing some linear frequency spaced freq/mag/phase txt files.

Project File Format Version: 9

Version 1.15.1 (16 November 2016)

New: All frequency plots now have the option of 1/3rd octave gridlines, which can be set in the Preferences dialog.
New: Settings in the Preferences dialog are now automatically retained between program runs.
Fix: Not all plots were adapting when the design sample rate was changed.

Project File Format Version: 9

Version 1.15 (4 November 2016)

New: A “Voicing” EQ tab, after the auto-magnitude and auto-phase tabs.
New: More than one auto-phase frequency band.
New: Unlimited target slope segments, magnitude and phase filters, and auto-magnitude and auto-phase frequency bands.
New: User defined frequency limits for filter truncation/windowing error max/min calculation.
New: The IIR filters, on the “IIR Filters” tab, now include high and low shelves, and bandpass filters.
Update: Minor improvements to auto-magnitude and auto-phase frequency band fade-in and fade-out.

Project File Format Version: 9

Version 1.14.1 (7 October 2016)

Fix: Averaging tab couldn’t load some measurement file formats.

Project File Format Version: 8

Version 1.14 (30 September 2016)

New: Keele/Horbach crossover profiles are available in “Direct Design” mode and can be used as a linear-phase target.
New: Support for 12 kHz and 24 kHz FIR filter sample rates.
New: “Direct Design” mag & phase filters are now independent of the regular workflow filters.
Fix: “Filter Delay” and “Filter Length” sliders would, very rarely and intermittently, not update the “Filter Delay” and “Filter Length” values.

Project File Format Version: 8

Version 1.13 (17 September 2016)

Improvements to mag/phase import interpolation near nyquist.
OsX download now certificate signed and should pass OsX GateKeeper as a known developer.
Windows download now certificate signed and appears as “Verified Publisher.”

Project File Format Version: 7

Version 1.12.6 (30 August 2016)

Fix: For integer output formats, coefficients > 1.0 or < -1.0 were wrapping around rather than being clipped.
Update: Added coefficient range warnings on Export tab.

Project File Format Version: 7

Version 1.12.5 (27 August 2016)

Fixed: Couldn’t import some older SMAART (*.trf) files.

Project File Format Version: 7

Version 1.12.4 (26 August 2016)

Fixed: Crash when first starting FIR Designer, creating an average and copying the average to the Import tab.
Fixed: Rare program crash during project save.

Project File Format Version: 7

Version 1.12.3 (17 August 2016)

Fixed: The Auto Mag tab wasn’t taking into account filters from the IIR Filters tab.

Project File Format Version: 7

Version 1.12.2 (13 August 2016)

Update: Internal improvements to frequency interpolation for mag/phase txt file importing, and to frequency sampling for mag/phase plotting.

Project File Format Version: 7

Version 1.12.1 (11 August 2016)

New: Auto Mag can now be either minimum phase (as previously) or linear phase (new).
Fix: The FFT size (and hence maximum IR length) wasn’t being set correctly when loading a project file.
Fix: A bug in frequency smoothing calculatons, for the Target and Auto tabs, could, in very rare cases, cause the program to crash.

Project File Format Version: 7

Version 1.11.1 (8 August 2016)

Update: Lowered the minimum frequency on Auto Mag and Auto Phase bands to 10 Hz.

Project File Format Version: 6

Version 1.11 (6 August 2016)

New: Import support for SMAART Trace (*.trf) files.

Version 1.10 (4 August 2016)

New: Support for 192 kHz filter designs.
New: We’re after feedback on the new Measurement Averaging tab (currently in Beta). Here a directory of measurements, in any format, can be loaded. The average response is computed, and the average can then be copied to the Import tab and used in the regular workflow. Choose one of the measurements as a “Reference” and all other measurements are time-aligned to the reference. Each measurement has manual time adjustment and an averaging weighting coefficient. The averaging process has 4 modes:
- full complex averaging,
- power-spectrum averaging with 0 phase,
- power-spectrum averaging with minimum phase, and
- power-spectrum averaging with minimum phase plus the excess phase from the “Reference” spectrum.
New: Longer filter lengths. Previously filters were limited to a maximum of 16384 samples. The new “Preferences” dialog has three transform sizes to choose from; 32768 (maximum IR of 16384 samples), 65536 (maximum IR length: 32768 samples) and 131,072 (max IR length: 65536 samples).
Update: Frequency plots now range from 15 Hz to 22 kHz. Impulse response plots can now show out to the maximum IR length.
Update: Time-sample impulse-response importing has been improved (for *.txt, *.csv and *.wav files).
- By default, the import process finds the index of the peak sample and then loads up to N samples starting from 1500 samples before the peak, or the start of the file – whichever is closer to the peak. (N is the transform length.)
- However if the filename has a number in the name just before the file extension, the number is interpreted as the location of the IR peak. This IR peak is treated as time=0 and the import process attempts to load N/2 samples either side of the peak (where N is the transform length). This is very useful for loading linear phase FIR filters as target response, and also maintaining consistent time alignment between loudspeaker drivers when designing filters for a multi-way loudspeaker. An example filename is “speaker_measurement_1010.wav”; the 1010 indicates the sample location of the IR peak.
Fixed: IR plots can now display up to the maximum IR length.

Version 1.9.2 (28 July 2016)

Fix: Crash during Project save when using “Design + File” mode on the Target tab.

Version 1.9.1 (23 June 2016)

Fix: ETM file import failed on some files.

Version 1.9 (21 June 2016)

New: CSV file import.
Update: Improved importing of long impulse response WAV files. The importing process now looks for the IR peak and keeps up to 1500 samples of pre-roll.
Update: Increased the range of the “Magnitude offset (dB)” parameters; now -150 dB to +50 dB.
Fix: Intermittent noise near nyquist in IR measurement resampling.
Fix: Application hangs when importing IR WAV files that contain more than 1 channel.

Version 1.8 (18 June 2016)

New: CSV file export. (Comma separated row.) Works with Biamp Systems Tesira processors.

Version 1.7 (15 June 2016)

New: Import and Target responses now have a manual offset setting, as an alternative to normalising to maximum. This is useful for maintaining consistent level when making FIR filters for drivers in a multi-way loudspeaker.
Fix: Export upper plot was sometimes not refreshing.

Version 1.6 (12 June 2016)

New: FIR Designer can now export and import a new “FIR Designer Target” file format. Filters created in “Direct Design” mode can be exported without the need for a license key, and imported as a target file in the regular workflow.
New: High-pass and low-pass IIR filters, that might be needed inline with the FIR filter, can now be entered on the new “IIR Filters” tab. (This can be useful for subwoofer HP filters that are too long to implement in FIR or simply for DC blocking.) The tab also includes a series capacitor calculator for calculating the equivalent 1st order high-pass filter for any series capacitor that will be installed inline with a high frequency driver.
New: The “Target Design” and “Target File” responses can now be used together. On the Target tab, selecting “Design + File” will combine the magnitude spectrums of both. This is useful for specifying crossovers in a Target File (using FIR Designer in Direct Design mode) and using the Target Design to set the overall system response curve.
Fix: Activation problem on some Windows 10 PC’s.

Version 1.5 (2 June 2016)

New: File Target now has normalise, delay and polarity options.
Update: All file load and save dialogs now remember the last directory.

Version 1.4 (25 May 2016)

New: Import support for EASERA ETM measurement files.
New: Added axis zoom and width controls on the import and export IR plots. This enables better viewing of lower-level and longer IR’s.
Update: Tweaked band smoothing below 200 Hz. (Used by Auto Mag and Auto Phase tabs.)
Fix: Filter delay and Filter length line edits were not updating when delay was set larger than length, or length set smaller than delay.

Version 1.3 (18 May 2016)

New: Added filter output gain on Export tab.
Fix: Filter delay and Filter length sliders now update when adjacent slider gets close in value.

Version 1.2 (13 May 2016)

New: Support for 96 kHz designs.
Fixed: Import tab delay (ms) wasn’t updating correctly when the design sample rate was changed.

Version 1.1.2 (10 May 2016)

Fixed: Target Design plot doesn’t refresh when loading a project file.

Version 1.1 (8 May 2016)

New: Improved handling of project files for future releases. (Added ProgramVersion, FileVersion and CoolCode fields.)
Fixed: Target response may sometimes load incorrectly when opening a project file.
Fixed: Application (on Windows) may crash during application close when using linear phase filters on the Mag Adjust tab.

Version 1.0 (7 May 2016)

Initial release.